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Review of Literature

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Non-Circular Journal Bearings

Part of the book series: SpringerBriefs in Materials ((BRIEFSMATERIALS))

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Abstract

This section provides details of research (both theoretical and experimental) carried out on hydrodynamic bearings, both circular and non-circular geometry. Among non-circular profiles, the research was carried out on offset-halves, multi-lobe, and elliptical journal bearings in particular. The literature also includes the different methods involved in the thermal analysis of the journal bearing. Enormous information on the theoretical and experimental work related to the circular journal bearings have been observed in the literature. However, such works pertaining to non-circular journal bearings, especially for offset-halves, multi-lobe, and elliptical journal bearings, are limited, and hence, are the main areas of focus in the present study. It has been a known fact that friction can be reduced with the use of suitable lubricant from the earlier days. However, during the nineteenth century, the mechanism pertaining to lubrication became known to all when the expansion of railroad system in United Kingdom commenced. Tower was assigned to investigate rail axle-bearing problems by the Institution of Mechanical Engineers (UK), and during investigation, he observed that the maximum pressure developed in journal bearing was six times higher than the mean bearing pressure, whereas the peaks were shifted towards the direction of motion. Further, Osborne Reynolds’ findings on hydrodynamic bearings motivated the researchers to go for research in areas of hydrodynamic journal bearings. The pressure generated in the lubricant due to its motion is called hydrodynamic pressure. Many researchers have reported that the oil film temperature rise is higher for circular journal bearings when compared to non-circular journal bearings. It has been also reported by the researchers like Hussain et al. (1996), Ma and Taylor (1996), Sehgal et al. (2000), Chauhan and Sehgal (2008), Chauhan et al. (2010) and few others that the non-circular journal bearings are quite stable and they run cooler during operation. In this section, the theoretical and experimental works pertaining to non-circular journal bearings have been summarized:

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Authors and Affiliations

  1. Panjab University, Chandigarh, India

    Amit Chauhan

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  1. Amit Chauhan
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Chauhan, A. (2016). Review of Literature. In: Non-Circular Journal Bearings. SpringerBriefs in Materials. Springer, Cham. https://doi.org/10.1007/978-3-319-27333-4_4

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